1.主控PLC与远程I/O模块，驱动与控制系统内各单机设备执行动作
2.主控PLC与WCS实现数据交换，分解并执行WCS下发任务
3.调度层与PLC控制系统，驱动各类执行设备单元执行动作

1.Main control PLC combined with remote I/O module to drive and control the execution of various individual equipment in the system.
2.Main control PLC and WCS are to exchange data, decompose and execute the tasks dispatched by WCS.
3.Dispatch level combined with PLC control system to drive the execution of various executing equipment.